Charles p



(No Model.) 2 sheetssheet 1. C. P. DOLE. GOAL SCOOP '0R BUCKET.

No. 556,310. Patented Mar. 10, 1896.

AN DREW B GRAHAM. PHDTO-LIT|1CLWA5M N GTON. D C

No Model.) 7 2 Smets-sheet 2.

C. P. DOLE.

GOAL scoor 0R BUCKET.

No. 556,310. Patgnted Mar. 10, 1896.

.Til-IUT"- WITNEsr-:s

ANDREW BLRAHAM. PHUTOMTIUWASHINGTUN. D C.

UNITED ySTATE-S PATENT OFFICE.

OIIARLESP. .DOLE, OF DULUTII, MINNESOTA, ASSIGNOR OF ONE-HALF TO CHARLES R. IIENEAGE, OF SAME PLACE.

COAL SCOOP OR BUCKET.

SPECIFICATION forming part of Letters Patent No. 556,310, dated (March 10, 1896A Application filed August 9, 1895. l

To all whom/,it may concern:

Be it known that I, CHARLES P. DOLE, a citizen of the United States, residingat Duluth, in the county of St. Louis and State of Minnesota, have invented certain new and.

useful Improvements in Coal Scoops or Buckets; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled io in the art to which it appertains to make and use the same.

My invention relates to improvements in self filling, hoisting and conveying buckets, and has more particular relation to such buckets as are designed for hoisting and conveying coal from a dock to cars, pockets, or carts into which said coal is to be loaded, although it is useful for handling other substances.

The invention consists of a hollow self-nlling bucket curved longitudinally and having contacting ends, one of which is pene trating, so that when the bucket is placed upon a pile of coal it will out or eat into the same, upon being dragged forward, in an improved manner.

It also consists of certain other novel constructions, combinations and arrangements of parts, all of which will be hereinafter more particularly set forth and claimed.

In the accompanying drawings, forming part of this specification, Figure l represents a side elevation of the bucket embodying my invention with its operating gearing, the bucket being shown in two of its positions by dotted lines and in one of. its positions by full lines. Fig. 2 represents an enlarged side elevation of said bucket, and Fig. 3 represents a top plan view of the same.

A, in the drawings, represents the elevated track; B, the carrier mounted upon the same; C, the rope for moving the carriage along said track; D, the bucket, and E the hoisting-rope for the same.

The track A and carrier B constitute no part of my invention and can be of any suitable and well-known construction.

The improved bucket D is made, preferably, four-sided and constructed of sheet metal and of oblong form, and on one side it is arched or curved inwardly and on the opposite side is made convex or curved out- Serial No. .558,720, (No modell.)

wardly. lAt one end of the inwardly-curved ,portion an extension d' is provided, said eX- ltension bein@ beveled u on its u er surface a pp so as to form a digging or penetrating edge. By thus'constructing the bucket it will, when it comes to rest upon a pile of coal, iirst con- `jtact with its ends against the coal and thus have its concave surface practically held in `by projecting or enlarging ianges di which prevent the bucket from cutting or eating with its penetrating edge too deeply into 'the coal as it is pulled forward.

A pivoted bail d3 is mounted on the forward end of the bucket and is connected to a tackle-block d4, about which the hoisting-rope E passes. The rear of the bucket is provided with latching means di and C19 and a laterally-swinging tailpiece d5 and supportingarms da, the latter being pivoted to the sides of the bucket, to one side of the center line, so that when said bucket is in a vertical position the pressure of the coal in said bucket will open the discharging end by pushing the tailpiece to one side on its being released from a securing-catch dl, and thus permit the coal to pass out. The said catch di consists of a headed hook pivotally mounted on the bucket by an angular bolt d. This catch is operated by a lever f, pivotally mounted in a yoke f secured to the bucket. The end of said lever f is pivotally connected to the catch dl by a link f2, and thus when the said lever fis operated the said catch is released and the tail-board of the bucket allowed to swing aside for the discharge of the load.

The arched or curved construction of my bucket at bottom and top affords a free entrance and large space for the coal and enables it with its penetrating edge d' to cut or eat into the same as it is dragged over the heap, and this without any assistance from an attendant.

My improved bucket will be found useful in connection with excavating and dredging machines and the like, but its greatest utility is developed in handling coal.

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The operation of the bucket is as follows: The apparatus is first moved into the position shown by dotted lines in Fig. l, and the carrier, if necessary, locked in such position by ordinary brake appliances of a drum or drums on which the operating or racking ropes wind on and off in the ordinary manner. The bucket is then allowed to assume the position shown in full lines, and the carriage is then moved forward to the position shown in full lines and locked by means such as just mentioned. The hoisting-rope is then operated and caused to draw the bucket up the inclined side of the coal-heap, and during this movement the penetrating edge of the bucket cuts or cats into the mass of coal until the bucket is filled. rlhe carrier is then moved back to a position immediately over the bucket, according to its altitude on the pile of coal, thus avoiding the breaking and grinding of coal on the pile which would result from pulling the bucket in contact with the mass farther than necessary to fill it, and then the bucket is raised clear of the coal. The carrier is then operated to move the bucket to the desired point, and when this point is reached the lever f is operated either by a rope or by it striking a suitable projection, and thus the catch is released, and thereupon the load swings the tailpiece of the bucket to one side and discharges. After the discharge of the load the tailpiece by its gravity automatically relatches itself.

My improved bucket answers a useful purpose whether drawn up against the inclined side of a coal-heap or over the level surface thereof.

Practice has proven that it is a very desirable and useful improvement to so construct the bucket that its lower or segmental-shaped side shall bc located between two ends which contact or strike first against the mass of coal at the front and rear ends of the bucket, for by this construction the major portion of the lower side of the bucket is kept from being embedded or from being caused to forcibly grind upon the mass of coal as the bucket is drawn upward; and it is also very important to have the upper and lower sides curved or arched substantially like one another, for by this construction a chamber of about uniform diameter throughout the length of the bucket is secured, and thus provision is made for the free iiowing of the coal into the bucket during the filling operation.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. A self-filling bucket constructed with an upwardly-curved bottom portion having front and rear ends which contact with the mass of coal or other material to be elevated, and upon which it rests, whereby the bucket, by means of one of its contacting ends, is when drawn forward caused to cut or eat into the mass over which it is drawn and become filled, substantially as described.

2. A self-filling bucket having bottom and top portions which are upwardly curved, longitudinally, the entire length of the bucket, the bottom portion resting on its front and rear ends only, and said bottom portion beingl provided with an extended penetrating edge whereby, when the bucket is pulled over the mass of coal, itis enabled to cut or eat into the same, substantially as described.

3. A self-filling bucket having bottom and top portions which are curved upwardly, longitudinally, the entire length of the bucket, and the lower one of said portions resting at its front and rear ends upon the lnass of coal or other substance while being drawn over the same, and thus the bucket enabled to cut or eat into the saine and become filled, substantially as described.

Li. A self-filling bucket havin g a bottom po rtion which is curved upwardly between its ends, said curved portion extending the en tire length of the bucket, and having ends at front and rear upon which it rests when in use, and which contact with the mass of coal or other substance, and the said lower portion having a penetrating projection from the open end of the bucket beyond the chamber of the bucket; and a pivoted tailpicce to said bucket, substantially as described.

5. A selfiilling bucket constructed with an upwardly-curved bottom, and having a tailpiece supported by bars pivoted to one side of the central line of the bucket, whereby the iilling of the bucket is insured and the tailpiece automatically swings open when released and closes after the load has passed out, and a catch for securing said tailpicce, substantially as described.

6. A self-iillin g bucket havin g an upwardly curved bottom, forming front and rear ends upon which it rests when in use, and which contact with the mass of coal or other substance, one of said ends forming an extended penetrating portion at the forward end of said bottom; and enlargement-flanges about the edge of the open end of said bucket, a bail pivoted to the front, and a pivoted tailpiccc at the rear end of the bucket, substantially as described.

In testimony whereof I hereunto ax my signature in presence of two witnesses.

CHARLES l. DOLE.

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